CUET (UG) entrance exam Question Bank Solutions for Physics

The valance electrons in alkali metal is a:-

The mass number of a nucleus is equal to the number of:-

How many code combination are there in a 8 bit byte?

What is medication index of an FM wave?

Gas exerts pressure on the walls of the container because :

A litre of an ideal gas at 27°C is heated at constant pressure to 297°C. The approximate final volume of the gas is?

A particle is dropped from a height H. The de Broglie wavelength of the particle as a function of height is proportional to

Two bodies A and B having masses in the ratio of 3 : 1 possess the same kinetic energy. The ratio of linear momentum of B to A is:

A solid sphere is in a rolling motion. In rolling motion, a body possesses translational kinetic energy (k_t) as well as rotational kinetic energy (k_r) simultaneously. The ratio k_t : k_r for the sphere is:

If the kinetic energy of the particle is increased to 16 times its previous value, the percentage change in the de-Broglie wavelength of the particle is:

Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momenta will be in the ratio:

When the displacement of a particle executing simple harmonic motion is half of its amplitude, the ratio of its kinetic energy to potential energy is:

An amplitude modulated wave is represented by the expression v_m = 5(1 + 0.6 cos 6280 t) sin(211 × 10⁴ t) volts. The minimum and maximum amplitudes of the amplitude modulated wave are, respectively:

A running man has half the kinetic energy of that of a boy of half of his mass. The man speeds up by 1 m/s so as to have the same K.E. as that of the boy. The original speed of the man will be:

For an electron accelerated from rest through a potential V, the de Broglie wavelength associated will be:

In AM waves, the amplitude of each side band frequency is ______.

The de- Broglie wave length of an electron moving with a speed of 6.6 × 10⁵ m/s is approximately

A proton is accelerated through one volt the increase in its kinetic energy is approximately

For production of characteristic of X-rays the electron trans mission is

The kinetic energy of electron in (electron volt) moving with the velocity of 4 × 10⁶ m/s will be